TEMPLE, Texas (KXAN) – A solider injured in Wednesday’s deadly shooting was discharged Friday morning from the hospital and three other wounded patients continue to improve, according to the trauma program director at Scott & White Memorial Hospital in Temple.

“Those patients suffered injuries to the spine, the neck the chest, but they’re improving continuously and I”m pleased with their progress,” said Dr. Matthew Davis, head of the trauma unit. Those soldiers were upgraded from critical to fair condition.

He said the patient discharged on Friday was in good condition and was supposed to go home the night before, but late testing showed he had to stay for one more night. Doctors continue to watch the other three patients. There was a concern some could be paralyzed, but Davis said it’s too early to tell.

“The diagnosis and the prognosis is a little bit uncertain, they continue to improve and move much better so I think we’re hopeful in that regard,” said Davis.

Five patients have been discharged from the hospital in total.

Fort Hood senior officer Lt. Gen. Mark Milley said Spc. Ivan Lopez was behind the shooting rampage which left three people dead and 16 injured. The motive behind the attack is still the big mystery, but Milley told members of the media an argument with another service member could have triggered off Lopez.

As soldiers continue to get better, the reality of what has happened is also starting to sink in. Scott & White Memorial Hospital said it’s helping families and offering counseling. Davis said the soldiers are strong and it’s motivating.

“I’m always impressed with the soldiers and the way they respond to these adverse events,” said Davis. “It’s kind of human nature particularity exemplified in our service men and women, they’re always been optimistic hopeful and appreciative people.”

He thinks, “there’s clearly some sadness and frustration” about what happened and as they learn the extent of their injuries they’re going to have some frustrations about wanting to get back to being healthy quickly

Davis said overall he was pleased with the way the hospital handled the tragic situation. He said he’s a perfectionist and believes small things that could improve.

“Unfortunately had the experience in 2009 to get the first run at this and I was very proud of how the system ran at that time,” said Davis. “I think we use that as a time to look forward to work with our partners at Darnell Army Hospital throughout the region including the EMS folks.

He said practice runs in the past, “paid off in huge dividends the past few days.”

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